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Doubles in session


Current system
19346+1808
STT 375
HD 184591


Nearby doubles
10' : 19345+1759
YSC 241

13' : 19352+1818
J 1077

17' : 19335+1814
HU 341

20' : 19332+1808
BPM1090

28' : 19340+1742
TDT1545

33' : 19343+1840
GCB 43

34' : 19341+1736
BPM1115

34' : 19324+1758
DAM 355

37' : 19322+1756
DAM 354

38' : 19339+1843
TDT1544

38' : 19372+1812
BPMA127

40' : 19319+1804
L 45

44' : 19321+1833
TDT1525

48' : 19314+1841
HJ 890

48' : 19316+1747
STF2536

49' : 19343+1720
BPM1117

50' : 19329+1724
CLZ 76

51' : 19354+1856
J 1176

53' : 19313+1830
TDT1518

55' : 19379+1836
HDS2785

56' : 19366+1721
LDS5880

58' : 19371+1723
HU 342

59' : 19363+1714
TDT1575

60' : 19315+1804
L 29

61' : 19311+1817
OL 82

65' : 19388+1834
COU 212AB



Selections
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Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19346+1808 STT 375 (HD 184591)

 
 
19h 34m 37.45s +18° 07' 41.2" P.A. 189.00 sep 0.6 mag 7.72,8.88 Sp G5 dist. 233.64 pc (762.13 l.y.)
 
 
Coord 2000 19346+1808 Discov num STT 375 Comp Coord arcsec 2000 19 34 37.45 +18 07 41.2
Date first 1843 Date last 2020 Obs 108
Pa first 120 Pa last 188.5 P.A. Now (θ) 183.2°
Sep first 0.6 Sep last 0.582 Sep. Now (ρ) 0.66"
Mag pri 7.72 Mag sec 8.88 delta mag (ΔM) 1.16 Spectral class G5 (yellow)
Pri motion ra +021 Sec motion ra +021
Pri motion dec +021 Sec motion dec +021
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 184591 Constellation Sagitta SAO 104991 HIP 96280
Tycho2 1605-01335-1 Gaia DR2 4323078857706156288 HD 184591 GC 27049
ADS 12623 BD BD+17 4009 Distance 233.64 Distance ly 762.13
 
 
ORBITAL ELEMENTS
 
 
Period (P)682y Periastron (T)2271.2y Semi-major axis (a)0.521a
Eccentricity (e)0.2 Inclination (i)24° Longitude of periastron (ω)159.4°
Node (Ω)177.7° Notesn ReferenceZir2015a
Equinox2000 Last observation2011 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 182.2 0.610
2001 182.5 0.610
2002 182.8 0.609
2003 183.2 0.609
2004 183.5 0.608
2005 183.9 0.607
2006 184.2 0.607
2007 184.6 0.606
2008 184.9 0.606
2009 185.3 0.605
2010 185.6 0.605
2011 186.0 0.604
2012 186.3 0.604
2013 186.7 0.603
2014 187.0 0.602
2015 187.4 0.602
2016 187.7 0.601
2017 188.1 0.600
2018 188.5 0.600
2019 188.8 0.599
2020 189.2 0.598
2021 189.5 0.598
2022 189.9 0.597
2023 190.3 0.596
2024 190.6 0.596
2025 191.0 0.595
2026 191.3 0.594
2027 191.7 0.593
2028 192.1 0.593
2029 192.4 0.592
2030 192.8 0.591
2031 193.2 0.590
2032 193.5 0.590
2033 193.9 0.589
2034 194.3 0.588
2035 194.6 0.587
2036 195.0 0.586
2037 195.4 0.586
2038 195.8 0.585
2039 196.1 0.584
2040 196.5 0.583
2041 196.9 0.582
2042 197.3 0.581
2043 197.7 0.580
2044 198.0 0.579
2045 198.4 0.579
2046 198.8 0.578
2047 199.2 0.577
2048 199.6 0.576
2049 200.0 0.575
2050 200.4 0.574


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds19346%2B1808a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic